Side-door construction



April 14, 1925; 'j 1,533,620;

K. J. TOBEN ET AL S IDE D OOR CONSTRUCTION Filed Aug. 14, 1924 '7 Sheets heat 1 April 14,1925. 1,533,620

K. J. TOBIN ET AL SIDE DOOR CONSTRUCTION Filed Aug. 14, 1924 7 sneik-snen 2 A $0 7 H 33 30 2/, :E 30 I V fizz/e72 715- '//7777e1% $515172, JM/YIG'ITZ var row April 14, 1925.

7 Sheets-Sheet 4 K i, TOBIN ET AL SIDE DOOR CONSTRUCTION Filed Aug; 14, 1924 A 25y M A azx s.

April 14, 1925. 1,533,620

K. J., TOBIN ET AL SIDE DOOR CONSTRUCTION Fi l d Aug. 14, 1924 7 Sheets-Sheet 5 April 14. 1925.

J. TOBIN ET AL SIDE DOOR CONSTRUCTION 7 Sheets-Sheet 7 Filed Aug. 14. 1924 m m II .W YWH C M u l Patentetli lpr. 14, 1925,

t le-TENT OFFICE.

KENNETH J'. TOIBIN AND 'W'ILLIAM W. IDARROW, OF CHICAGO, ILLINOIS, ASSIGNORS TO CAMEL OOISIPANY, OE CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SIDE-DOOR CONSTRUCTION.

Application filed-August 14, 1924.

To (ZZZ whom it Tmzy concern:

Be it known that we, KENNETH J. TOBIN and lVILmAM W. Dannow, citizens of the United States, residing, respectively, at Chicago, in the county of Cook and State of Illinois, and at Chicago in the county of Cook and State of Illinois, have jointly invented certain new and useful Improvements in Side-Door Constructions, of which the following, is a specification.

The present invention relates to side door construction.

More particularly the present invention relates to side door constructions for railway cars of the box car type.

Box cars for certain purposes, as for example box cars used in the transportation of automobiles and the like, must have side door openings of more than the usual Width. Cars of this sort are commonly provided, in addition to the usual sliding door, with a secondary or supplementary door, some-- times narrower than the main door though not necessarily so, which secondary or supplementary door is slidaloly movable to rovide a door opening of extraordinary Width but which may be stationarily held when a door opening of such extraordinary width is not required. When the door opening of extraordinary width is not required, said secondary or supplementary door acts as a part of the car wall.

The present invention has for one of its objects the provision of an improved construction wherein a door opening of extraordinary width may be provided without weakeningthe car structure.

' A further object is to. provide an inexpensive and practical construction of carv door which while retaining, the advantage of extraordinary door opening and car rigidity has the advantages of simplicity and ready availability for carrying grain or other finely divided lading. y

A further object is to provide a side door construction involving a main door, a supplemental door and a movable door jamb, which door jamb will automatically lock itself in closed position but which may .be readily unlocked when it is desired to move Serial No. 732,04.

said jamb to provide a door opening of extraordinary width.

A iurther object is to provide a side door construction involving a main door, asupplemental door and a movable door jamb, which side door construction combines ease of operation with sturdiness.

A further object is to provide a side door construction of are double-door type where in the supplemental door is so constructed that it will lock automatically when closed,

and will be securely and rigidly held against is reduced to a minimum and in which the number of kinds of fittings is reduced to a minimum.

A- further object is to provide side door construction so arranged that the danger of the. construction becoming inoperative through the accumulation of ice, snow, or other foreign matter, is reduced to a minimum.

A further object is to'provide a side door construction which adapts itself for the ellicient application of grain doors.

' A further object is to provide a side door construction involving a movable jamb, which jamb will become automatically locked in place when in closed position to form a brace between thes'ide plate and side sill of a railway car, but which maybe released without difiiculty.

A further object is to provide a side door construction involving a main door and a supplemental door, which construction will be simple and rigid, economical to fabricate and install, which will contain a minimum of parts, and which provides efficient 'h01d-;,

ing means for grain doors or other types at 'coopc'ing at present employed onxrailway 'Fi ure 1;

igure 3 is a fragmentary view in elevation, the floor of the carbeing shown in section, looking at the doors in their closed positions from the inside of the 'car;

Figure 4 is a fragmentary view, on a larger scale, showing the supplementary door, the door j amb movable therewith, and

the mechanism for locking said door and jamb in closed position;

Figure 5 is a. fragmentary view of the' structure illustrated in Figure 4, looking in the direction indicated by the arrow 5 of Figure 4;

Figure 6 is a fragmentary perspective view showing the supplementary door and door jamb movable therewith with the upper door stop removed and thej'main door partly open;

Figure 7 is'a sectional view taken along the plane indicatedbythe" arrows 7---7-'of Figure 3; v

Figure 8 is 'a perspective view of a sto plate or detent member which may be used either at the top or bottom of the car;

- Fi ure 9 illustrates a modified form of mova le door jamb particularly applicable to steel door construction;

Figure 10 is a sectional view taken along the plane indicated by the arrows 10-1O of Figure 9; p

Figure 11 is a fragmentary view illustrating a modified form of'fitting particularly adaptable for use with a wooden post or jamb; 9 I Figure 12 is a fragmentary view inielevation looking in the direction of the arrow 12- of Figure 4; Y

Figure 13 is a sectional view, taken along the plane indicated by the arrows 13-13 of Figure 12; H p

'Figure 14 is a fragmentary view in elevation, looking from the interior of the car,

illustrating a modified "structure particu- 'larly adaptable for use wliith grain doors;

Figure 15 is a sectionalt view taken along theplane indicated by the: arrows 1515 of Figure 14; i

1 Figure 16 illustrates "a slight modification of structure shownin Figures 14 and 1:);

Figure 17 illustrates a modification of the structure shown in Figure 16; and

Figure 18 is a fragmentary view illus tr'ating the construction of afdetent member used in the practice of the present invention.

Referring first to Figures 1 and 2, the

' numeral 1 illustrates the side wall and the numerals 2 and 3 indicate respectively the side plates and side sills of a railway box car. The numeral 1 indicates a sliding door, which for purposes of description, will be referred to in this specification as the main door. Said main door is adapted Figure 2 to the position indicated in dotted lines in said figure. Mechanism is p1'ovid ed for releasably securing the jamb 5fin the position shown in full lines in Figure 2, whichinechanism will be described in detail hereinafter. The numeral 7 indicates as a whole certain push and pull mechanism, whereby t he main door 4: may be readily moved relative to the supplementary door 6 either in openin or closing movement. The mechanism forms no part of the present invention and need not be described herein. The numeral 8 indicates as a whole certain locking and sealing mechanism whereby the main door 4 may be locked in its closed position. The doors 4 and 6illustrated in Figure 1 are bottom -to cooperate with the post or jamb 5, i

hung, suitable track means and rollers be ing provided for facilitating the sliding movcmcntof said doors. It will be apparent, however, as the description proceeds that the present invention is independent of the means for hanging the doors.

Referring now to Figures 3, 4, 5 and 6, it

will benoted that-the" supplementary door 6l1as'sccured thereto the vertical post or jamb indicated in its entiret by the nu- .meral 9. As best shown in Figures 4 and 6, the post may comprise two angles 101O having edges abutting or substantially abutting to form a channel. As shown in vention illustrated in Figures 6 and 7,

there is a small diiference between the angles 10-40 making up the post or j amb 9 in. order that the inwardly disposed edges of the nngles'1010 may lie in a plane substantially parallel. with the our side.

sired u," filler plate of the thickness ofth e inner flange of Z-bar 12 may be provided fiwla ich will be referredto hereinafter.

below that ungleld which is disposed. at

the left as the pertsv are viewed. in Figure 6, whereby the twonngles 10-10 of the post or jnmb 9 maybe identical and still have their imverdlypdisposed edges it plane parallel with. the cor side. Any pre-- means for supporting the housing is illustrsted in Figure 10, 1n which each housing 13 is providedwith e plurality of studs 1 l 14 egttendin in a plane parallel with the tilde walls of the cur. -Said studs 14-14 extend through suitable holes in the laterally disposed flanges of the. channel-shaped post 9. Each of the housings is provided with slotted portions openi toward said lutorally disposed flanges o the channel-shaped post 9, said slots being indicated by the nu Trnerals '15-15. Referring to the upper housin 13, one .of the slots 15 houses trunv.ni'ons 16 (onlyone being shown), which ti'unnions are held in place by the adjacent flange oi the channel-shaped post 9.

Said trunnions 16iorm pivot members for the catch member 17 The catch member 17 is provided with a. catch portion 18 adapted to engage with certain detent mechanism,

to. be described hereinafter. The catch member 17 is also prdvided'wi-th an operating orm 19. Referring to the lower housing 13, one or the slots 15 receives thelever 20,

' which lever is provided with a catch portion if hendlefportion 24, which may be conven-v iently grasped by an operator. The upper 21 adapted to engage with certain detent mechan sm to be described hereinafter. Said lever 20 also has an end portion 22 which preferably projects, laterally of the chennclshaped post?) .on the same side as the 0p- .eroting arm 19 of the catch member 17.

ounted in cooperative relationship with Qthe catch member 17 and with the lever 20 is the trip member'23. Said trip member 23 msy be an elongated bar having the It" will be understood, oircourse, that if de-' One end of said trip member 23 is provided with it turned over portion 25, wh1ch, when the trip member is reised,-will cause the operating arm 19 of the catch member 17 to swing upwardly and outwardly whereby to lower the catch portion 18 of said cutch member 17. It may be stated as this point that the catch member 17 is so designed that it will normally assume a position with the operatingarm 19 in its lowermost position to hold the cutch portion 18 in its uppermost or engaging position. The lower portion of the trip member 23 is provided with an aperture 26 loosely encircling the end portion 22 of the lever 21. Straps 27 (Fig ure at) may be provided for holding the trip member 23 in place. Furthermore, a tongue 28 may be struck out from the 'adjacent flange of one of the angles 10, which tongue may ride in slots 290i the trip member 23 to guide said trip member in 21. vertical movement. It will be obvious that when the trip member 23 is raised against the influence o'f gravity, the catch member 17 will be moved tb'dower the catch portion 18 thereof and the lever 20 will be moved to raise the catch portion 2]. thereof.

Figure 8 illustrates in perspective a. detent member 29, one of which may be secured to the side plate at the top of the car and another of which may be secured to the side sill at the bottom of the cur. Said detent members 29 may be of malleable iron or cast steel and are provided with suitable apertures 30-3O through which suitable holding bolts may extend for l'iolding the detent members securely in place. Each of the detentmem hers is provided with the stop members 30' end 31, which provide between them a notch 32 having square shoulders. Said notch 32 is adopted to receive the catch portion 21 of i the lever 20 or the catch portion 18 of the catch member 17. The stop member 31 is provided with the beveled face 33 for guiding the cooperating catch portion 21 or the cooperating cntch portion 18 in the closing movement of the supplemental door 6. It will be noted that the stop members 30 and 31 are mounted upon the standard 34:, thereby forming a T-shepe-d structure. Mounted at the end of the T-shaped structure is the positive stop 35. As will be noted from an inspect-ion of Figure 8, the detent member 29 is provided with a. plurality, of transversely extending ridges Edi-86 providing between them the depressions 3737. Preferably said ridges have square. shoulders. The purpose of the ridges 3(l36 and the alternating depressions 37-437 is to permit the insertion of a crow bar or other lmplement between the detent member 29 and the jamb 9'if sticking should occur. It will be noted that the detent member 29. located on the floor of the car is so positioned that the notch 32 is completely above the floor line.

This is clearly indicated in Figures 4, 5 and 6. It will be noted that the notch is open at both of its ends, whereby said notch may be readily cleaned ofice or dirt. Moreover, said notch extends in a line transversely of the car, whereby when the car is being swept out, by means of a broom or similar article, said notch 32 will be cleaner with out any particular attention.

It will be noted that when the upper catch member 17 is in latching position the trip member 23 must be in its down position, that is to saysaid trip member must be in-position to permit the catch portion 21 of: the lever 20 at the bottom of the door jamh to be in latching position. Expressed in other language, it may be stated that if the latching, lever 20 at the bottom of the jamb is held upwardly out of latching posh tion, the trip member 23' will hold the upper catch member 17 out of latching position. It will be impossible for the upper catch member 17 to be in latching position at any time when the lever 20 at the bottom of the jamb is out of latching position. Even if the movablejamb got slightly ashew, as, for example, when it is not secured 'to the supplemental door, the portion 31 of the lower detent member 29 will hold the lower latching lever 20 in its uppermost position within a relativelywide, range of travel, whereby it will be impossible tor the upper catch member 17 to reach latching position before the catch portion '21 has reached the portion 31 of the lower (lctcnt member 2!). When, as ireferred, the jamb isrigidly secured to t 1e supplemental.dooigftlierc is no substantial skewing etlect on the jamh, said jamb always occupying a substantially rcrtical position. Under these conditions it is manifestly impossible for the. upper latchin z; member 17 to he in latching position when the lower latching lever 22 is out-of latching position.

As ill rated in Figures 5 and (l. the lat-- orally disposed flanges of the t'lHUiIHl-sb:1] l

' )0st 9 are recessed at their ends as indicated The T-shapcd construction above referred to, provided by the portion 34- and the stop members 30 and 31, provides a space for receiving the projecting portions 3S)---;s7 ot the post 9 and the housings 13-13. lte'l'crrmg to the interlocking relationship between the T-shapcd construction of the detent mem bcrs secured to the side sill and side plate of the car (constituting the bottom and top portions,respectively, of said car) and the projecting portions 39-459 of the post 1), said interlocking relationship has the advantage that if said side sill and side plate should tend to spread, as, for exam 1e, in

' the case of a collision or in the case 0 overloading, the jamb will act as a tie to resist such spreading. 1

The channel-shaped post 9 provides a space presented inwardly of the car for a timber, known in the art as a nailing strip,

by means of which grain doors may be conrcniently nailed in .place. This nailing strip is indicated by the numeral 40 and is illustrated in Figures 2, 3, and 6. Said nailing strip may extend the length of the post 9 between the housings 13-13 and-may be held in position by nails or other securing means extending through the holes 4141. The gram doors may be nailed to the nailmg strip 40 and to the stationary jambs 4%- 42 (Figure 2). It need not be explained that the ordinary freight car door is not ortion the securing of the grain doors is very greatly. facilitated;

Figures 9 and 10 illustrates, modification particularly adaptable for the steel freight cars. According to the embodiment illustrated in said figures, the angles 10-10 have their flanges disposed in positions extending; away t'rom one another, that is to say, those flanges which are mounted parallcl with the side walls of the car are disposed laterally of the post Q-instead ofinwardly of said post. Figure 9 also illustrates a slightly modified form of catch member, said catch member being indicated by the numeral 43. Said catch member 43 is connected to the trip member 23 in a manner to permit a certain amount of swinging morement but preventing longitudinal movement of said trip member .23 relative to said catch member 43. The catch member =13 has pivotal connection with the housing 13 and is provided with a catch portion 44,

which operates in a manner similar to the action of the catch portion 18 of the catch member 17 shown in Figure 4. i

Figure 11 illustrates an embodiment suit-file The wooden able for a wooden door jamb. doorjainb is indicated by the numeral 45am!" is provided at the to and bottom thereof with the housing 46. gaid housing 46 may be secured to the wooden post 45 by any re- 12o l'crrcd means and is recessed in the way-described in connection with Figure 5 whereby to cooperate with the T-shapcd construction involving the support 3-! and the stop members I igurcs 14;, 1:), 16 ad .l7-,illnstrate structurcswhich are peculiarly adapted for the application (if gram doors.//Acc0rding to the structureshownin' Figures 14 and 15, 130

20' and 31 ot' the detent member .29 shown in Figure &

naeaeao the angles il0l0, which have substantially.

abutting flanges placed adjacent to the car wall, have on their other flanges, that is, the flanges extending toward the interior of the car, a plurality of angles secured thereto to form groove, indicated by the numerals 4747 for the reception of grain doors, which grain doors are indicated by the numerals t8d8. According to the construction illustrated in Figure. 16, the angles 1010 are replaced by Z-bars 49-49, which have cooperating therewith certain angles 4949 to provide the grooves .t7t7 for receiving the grain doors 48- According to the construction shown in Figure 17,- special structural shapes are illustrated "for providing the grooves 47 l7. The advantages of the structure shown in Figures 14 to 17 inclusive are as follows: After grain doors have been nailed in place inside of a box car, they are frequently considerably mutilated when removed. In order to remove said grain doors, an operator will pry same loose so that the nailed edges are often mutilated and are not suitable for renailing. According to the embodiment of the invention illustrated in Figures 14 to 17 inclusive, only one end of each grain door need nailed in place, the other ends being dis posed within the grooves 47- 1:? In re moving the grain doors the operator will have to pry loose only one end of each grain door, so that the life of each grain door is doubled. I v

' Figure 18 illustrates a preferred construction of the trip member 23 and its cooperating parts. As illustrated in Figure 18, the

trip member is capable not only of a movement in a vertical direction, but has a slight movement toward and away from the jamb 9. In order to permit the latter mentioned movement, the straps 27 are arranged to only loosely enclose said trip member 23. Said trip member 23 is provided with the catch portion 50, which is adapted to catch over one of the straps 27. By reason of this constructiomwvhen it is desired to hold the trip member "in its uppermost or unlatching' position, it is only necessary to move the trip member away from the jamb slightly, so that the catch portion 50 will rest upon'one of the straps 27. ,When the jamb 9 is moved .to its home position, the jar attending such movement will cause, the catch portion 50 to move from the corresponding strap 27 allowing the trip member 23 to fall, allowing the latches at the upper and lower ends of the jamb to assume their latching positions.

Though certain preferred embodiments of the present invention have been illustrated for the purposes of'description, it is to be.

understood that many modifications may be made without departing from the spirit of the invention. It is intended to cover all such modifications thatfall within the scope of the appended claims.

lVh-at is ,claimed is:

1. A car having a side'door opening, a movable jainb in, said opening, means for automatically locking said jamb at its top and bottom when said jamb is moved to a predetermined. position, and means for preventing the locking at the top of said jamb except when said jamb is locked at its bottom.

52. A car having a side door opening, a movable jamb in said opening, said jamb being; provided with interchangeable latch supporting member at its upper and lower extremities, detent members mounted on said car at the top and bottom boundaries of said door opening, said detent members and said latch supporting members being provided with overlapping portions whereby to prevent spreading of the top and bottom portions of said car.

3. A car having a door opening, a pair of doors for closing said opening, said doors having adjacent edges adapted to be brought together for closing said door opening, one of said doors including a jamb movable therewith, means for automatically locking said jamb at its top and bottom when said jamb is moved to a predetermined position, and means capable, in a single movement,

f unlocking said. jamb at its top and bottom.

4. A car having a door opening, two doors having cooperating edge portions for closing said door opening, one of said'doors having secured thereto inwardly of said car a jamb movable therewith, and means for automatically locking saiddoor at its top and bottom when said jamb is moved to a predetern'iinedposition, said locking means including interchangeable latch supporting members at the upper and lower extremities at said jamb, said locking means also in cluding detent members carried by said car at the upper and lower portions thereof,

said detent members and said latch supporting members being provided with overlapping portions for preventing the spreading of said top and bottom portions of said car.

5, A car having a door opening, two doors having cooperating edge portions for closing said door opening, one of said doors having secured thereto inwardly of said car a jambnnovable therewith, positive means for automatically locking said door at its top and bottom when said jamb is moved to a prdetermined position, and'releasing means, operable in a single movement disposed inwardly of said car for releasing said locking means 6. A car having a door opening, a door jamb movable longitudinally of said open- I eluding a. pair of latching members, and

means for preventing the looking at the bottom of said car except when lockingiis of fected at the top of said car. Y

7. A railway ear having a door opening, a jamb movable longitudinally of said car, and a pair of slidable doors cooperating with said jamb, said jamb comprising an angular construction adapted to receive a nailing strip, the reentrant angle'of said angular construction being presented trans verscly and inwardly of said car.

8. In combination, in a railway car having a door opening, a pair of doors slidable to close said opening, said doors having edges adaptedto interfit with one another, one of said doorshaving secured thereto a jamb movable therewith, latch means for locking said jamb both at the top and bottom when said jamb is moved to a predetermined position, and means operable in a single movement for releasing said locking means, said releasing means including por-.-

tions for preventing the locking of said jamb at its top except when said jamb 1s locked at its bottom. I i

. 9. A railway car having a door opening,"

a jamb movable longitudinally of said car, and a pair of slidable doors cooperating with said jamb, said jamb comprisinga channel-shaped construction adapted to receive a nailing strip, the channel of said construction being presented, transversely and inwardly of said car.

10. A car having a door opening and. a door 'amb movable longitudinally of said car, said door jamb comprising a pair of vertically placed angle 'members having flanges disposed parallel with the wall of said car and having other flanges extending toward the interior of said car, said last mentioned flanges being fashioned to facilitate the attachment and holding of a cooperating strip therebteween.

11. A car having a door opening, a pair of doors to close said opening, a jamb movable longitudinally of said car for cooperating with said doors, said jamb comprising a channelshaped construction, and in- 0 terchangeable latch supporting members mounted at the top and bottom of said jamb.

12. A car having a door opening, a m'ovable jamb in said opening, said 'jamb comprising a channel-shaped construction and holding members mounted at the top and bottom of said jamb, and latch members carried by said holding members, said holding members being fashioned to readily re ceive said latch members, said channeled construction being fashioned to cooperate with said holding members to hold said latch members against displacement.

13. A car having a door opening, a jamb movable longitudinally of said car, said jamb comprising a channeled construction including a pair of angle members placed tom of said jamb, holding members for said latch members, said holding members having laterally presented studs fitting in holes in said channeled construction whereby'said holding members are secured in position.

together, latch members at the top and bot- 14;. A car having adoor opening, a main door for said opening, a supplemental door, a jamb secured to said supplemental door on the inner face thereof, said jamb inclutlmg a channeled construction nav ng-.--1-ts channeled face presented inwarrdlyl'of said car. 7

15. A car having a door opening, a main door for said opening, a supplemental door for said opening, a door amb secured to said supplemental door on the inner face thereof, said door j amb having secured thereto latch members at its to tom portions, and interchangeabl e for said latch members l6. Acar having a door opening, a pairof doors to close said opening, one of said doors having secured thereto on its inwardly presented face a vertically extending movable door jamb, said door jamb having lock- V ing elements at it top and bottom portion, detent members cooperating'with said looking elements, said detent members being interchangeable at the top and bottom of said jamb, said detent members and said locking housings members having interfitting slidable pore tions. r p

17. A car having a'door opening and a door jamb movable longitudinally of said 4 car, said door jamb including a vertically placed angle member, the reentrant angle of said angle member being presented transversely and inwardly of said car, the flanges of said angle member being fashioned to facilitate the attachment and holding of a cooperating strip j 18. A railway car having a door opening,

a movable jamb in said opening, latch memand botbersat the top and bottom of said jamb for holding same in predetermined position, in terchangeable members for pivotally supporting said latch -members, and detent members at the top and bottom of said jamb, said detent members having runway portions of T-shaped cross section. said jamb having portions cooperating with said T-shapcd portions to maintain said jamb and said detent members in cooperative relationship.

19. A car having adoor opening a pair of doors to close said opening, a jamb movable longitudinally of said car for cooperating with said doors, said jamb including an angle member adaptedto receive a,nailing strip in its reentrant angle, and interchangeable latch supporting members mounted at the top'and bottom of said jamb.

20. A door ja-mb comprising a channeled Cil construction made up of two angles placed said housings being provided with a slot adapted to receive a locking member, said slots being closed by adjacent flanges of said angles ii. A railway car having a pair of doors for closing said opening, a door jamb in said opening movable longitudinally of said car. interchangeable housings mounted at the top and bottom of said jamb. locking elements supported by said housings and interchangeable detent memhers cooperating with said locking members for locking said jamb in a predetermined position.

12;. railway car having); a door opening, a pair 1' doors for closing said opening", a door jamb in said opening movable longitudinally of said car. interchangeable housine's mounted at the top and bottom of said jamb. locking elements supported by said housings and interchangeable dclent memhers cooperating with said locking members for locking said jambin a predetermined position, said members bein formed with guiding portions whereby when said jamb is moved to said predetermined position said members will be moved automatically into locking engagement.

23. A. railway car having a door opening, a pair of doors for closing said openingr, a

a door openi ng,

, door jamb in said opening movable longitudinally of said car, interchangeable supporting members mounted at the top and bottom of said jamb, locking elements sup ported by said supporting members and detentme-mbers cooperating with said locking;

members for locking said 'jamb in a. predetermined position, said detent members being formed with guiding portions whereby when said jalnbis moved to said predetermined position said members will be moved automaticallyinto locking engagement.

24:. A car having a door opening, a more ble iamb in said opening, said jamb comprising; an angle member and holding members mounted at the top and bottom of said jamb, and latch members carried by said holding members, said holding members "being fashioned to readily receive said latch members, said angle member being" fashioned to cooperate with said holding members to holdsaid latch members against displacement.

25. A car having a doo'r opening, a main doorfor said opening, a supplemental door, and a. jamb cooperating with said doors and mounted interiorly of said car, said jamb including an angle member having its'reentrant angle presented inwardly of said car. 4

' 26. Means for holding a sliding door do tachably in a predetermined position, including a vertically mounted member, a 7 pair of detent membel's-mounted above and below said predetermined position of said vert1cal mcmbe each of said top and bottom members having a T-shaped projection the head of which is provided with a'guid in'g surface, and each of said top and bottom members having an abutment portion arranged at right angles to said T-sl1aped projection, and latch members carried by said vertical. member adapted to cooperate with said T-shaped projections and with said abutment portions.

27. A railway ear having a door opening, a pair of sliding: doors for closing said open ing, one of said doors being provided with a jamb movable therewith, said jamb being provided with a recess for securing coop crating material to said ja'mb, said. recess being presented transversely and inwardly of said car. 1

28. A railway/car having a door opening, a pair of sliding doors for closing said opening. a door jamb secured to one of said doors, locking means for locking said jamb in a predetermined position both at the top and bottom oi said jamb, and unitary nnlocking means for releasing said jainb in a single movement.

29. A railway car having a door opening, a pair of sliding doors for closing said opening. a door jamb secured to one of said doors. locking means for locking said jamb in a predetermined position both at the top and botton'i of said jamb, and unitary' unlocking means for releasing said, jamb in a single movement, said jamb being provided with grooved portions for receiv; ing and holding: coopering material.

30. A car havin a side door opening. a n'iovable jamb in said opening; a door secured to said jamb and movabletherewith, a second door adapted to cooperate with said jamb. and independently movable relative thereto. means for automatically lockine' said jamb at itstop and bottom. when said jamb is moved to av predetermined position. and means capable, in a single. more meat. oi unlocking said jamb at its top and bottom.

31. A railway ear having: a door opening, a pair of doors for closing said. opening, a door jamb in said opening" movable longitudinally of said ear. interchangeable housinns mounted at the top and bottom of said jamb. locking elements shipported by said housings and detcnt. members cooperating with said locking: elements for locking said jamb in a predetermined p sitidn.

32. A railway car having, a door opening, a pair of doors for closing said opening, a

door jamb in said opening movable longitudinally of said car, interchangeable'housings mounted at the top an bottom'of said jamb, locking elements supported by said housings and detent members cooperating-- .Wlth said locking members for locking said j amb in a predetermined position, said" members being formed with guiding portions whereby when said jamb is moved to said predetermined position said members will be moved automatically into lockingengagemerit.

33. A car having a door opening, a movable door jamb mounted in said opening, said door jamb having latch members mounted at the upper and lower portions thereof, a trip member for simultaneously operating said latch members, said trip member and said door jamb having cooperating portions 20 whereby said trip member may be held in unlatchingposition. t o

34. A carhaving a door opening. a pair of doors for closing said opening, said doors having adjacent edges adapted to be brought together for closing said door opening, one of said doors including a jazub permanently secured thereto and movable therewith, means for automatically locking said jamh at its topand bottom when said jamb is moved to a predetermined position, and means capable, in a single movement, of unlocking said jamb at its top and bottom.

35. A car having a door opening, a pair of doors for closing said opening, said doors having adjacent edges adapted to be brought together for closing said door opening, one of said' doors including a jamb movable therewith, and means for auton'iatieally loclc ing said jamb at its top and bottom when said jamb is moved to a predetermined position,,said jamb being provided with means interfitting with said car whereby to operate as a tie between the top and bottom portions of said car.

36. A 'car having a door opening, two doors having cooperating edgeportions for fclosinglsaid door opening, one of said doors i having. secured thereto inwardly of said an a gamb movable therewith, positive means for automatically locking said door at its a top and bottom when said j amb'i's moved to in predetermined position, and releasing means disposed inwardly of said car for 1e-' leasing said locking means, said jamb being provided with means interfitting with said car whereby to operate as a tie between the top and bottom portions of said car..

37. A railway car having a door opening, pair of doors for closing said opening, a door jamb in said opening movable longi- .ti.idinally of said car, interchangeable supporting members mounted at the top and bottom of said jamb, locking elements pivotally supported by said supporting members, and detent members cooperating with said locking elements for locking said jamb in a predetermined position.

38. Inside door construction, the side sill aoia car, door mcans slidable longitudinally of said car, and means for locking said door in predeterrnin'iul position, said locking means including a latch upon said door means and a detent mounted'upon said sill, said dctcn-t member having an open-ended notch for receiving said latch, said notch being disposed in a direction transversely of said car.

39. A railway car having a door opening, a pair of doors for closing said opening, a door jamb in said opening movable longitudinally of said car, interchangeable latch carrying members mounted at the top and bottom of said 'jamb, latching elements supported by said members, and detent members carried by the upper and lower portions of said car cooperating with said. latching members for locking said jamb in a predetermined position. I

4-0. A- railway car having a door opening, a pair of doors for closing said opening, a door jamb in said opening movable longitudinally of said car, interchangeable latchcarrying members mounted at the top and bottom of said jamb, latching elements sup 'ported by said members, and detent members carried by the upper and lower portions of said car cooperating with said latching members for locking said jamb in a. predetermined position, said detcnt members having cooperating overlapping portions to prevent the spreading of the top and bottom portions of the car.

Signed at t hicago, lllinois, this 6th day of August, 1924:.

KENNETH 'J. TOBIN.

WlLLIAlSl V. DARROlV.

CERTIFICATE OF CORRECTION.

Patent No. 1,533,620. Granted April 14, 1925,10

KENNETH J. TOBIN ET AL.

It is, hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: iage 6, lines 43, 44 and 1&8, claims 10 and 37 respectively, and page 7, lines 87 and 88, claim 27, for "cooperating" read "coopering"; and the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 23rd day of October, A. D. 1928.

M. J. Moore, (Seal) Acting Commissioner of Patents. 

